GASOLINE AUTOMOBILE FUEL COMPRISING AGENT FOR INCREASING THE OCTANE NUMBER

摘要

The invention relates to an agent for increasing the octane number of a gasoline automobile fuel, which agent is a combination of alcohol and a product of reaction between a carbonyl compound and a compound containing at least two hydroxyl groups allowing the formation of cycles with carbonyl compounds, or is the mixtures of the above mentioned products. In a preferred embodiment, mono- or oligosaccharides or diatomic, triatomic or polyatomic alcohols are used as the compounds containing at least two hydroxyl groups allowing the formation of cycles with carbonyl compounds. Pentoses, preferably xylose or arabinose or hexose, substantially glucose, and the mixtures thereof are used as the monosaccharides. Glycols, for example, ethylene glycol are used as diatomic alcohols, glycerin is used as triatomic alcohols and erythritols, for example, pentaerythritol are used as polyatomic alcohols. A compound relating to lower aldehydes or lower ketones, for example, formaldehyde, acetaldehyde, acetone, methylethylketone, diethylketone or cyclohexane, is used as a carbonyl compound. The alcohols correspond to aliphatic alcohols containing up to five carbon atoms, preferably ethanol. The inventive gasoline automobile fuel means a gasoline or an alcohol-gasoline composition.